英语六级高频词汇复习笔记(18)
               日期:2011-06-11
               
			   
                   4. intermittent a. 断断续续
           
            
    		            
                        
        intermittent failure 间歇失效,间发故障 the intermittent rain showers 时断时续地下着雨
The air is filled with angry shouts, the intermittent siren.